A dynamic checkweigher can do much more than merely alert operators in the event of an underfilled or overfilled package. The package in question can be removed from the production line into either a reject bin or rework area, and with advanced options the checkweigher can even send real-time feedback to the filler and make adjustments to halt further over or underfilling
There are any number of factors which can influence weighing accuracy – the most immediately obvious is conveyor vibration. Other factors include the position of the product on the conveyor, the speed at which the product traverses the weighing area, and even the ambient temperature. We have both hardware and software solutions to mitigate, compensate for and even eliminate these factors.
Random sampling using a static weigher will usually identify an overfilled or underfilled product, but this means that by the time the error is detected there will be a significant amount of rework to perform – spending time and effort that could be better used elsewhere.
Apart from being able to send feedback to adjust filler settings and thus reduce the amount of rework required, the data sent by a checkweigher can help to spot production trends, identify weak points in the process and indicate when equipment is in need of maintenance or replacement. Support for centralized control allows for even greater strides in automation – making the best possible use of available resources.